Anti-vascular Endothelial Growth Factor Treatment of Retinopathy of Prematurity: Efficacy, Safety, and Anatomical Outcomes

Korean J Ophthalmol. 2018 Dec;32(6):451-458. doi: 10.3341/kjo.2018.0011.

Abstract

Purpose: To investigate the efficacy, safety, and anatomical outcomes associated with intravitreal anti-vascular endothelial growth factor (VEGF) treatment of retinopathy of prematurity (ROP).

Methods: We performed a retrospective review of intravitreal anti-VEGF (bevacizumab or ranibizumab) treatment of 153 eyes (83 infants) diagnosed with ROP at two tertiary hospitals from June 2011 to January 2017. The primary outcome was the rate of recurrence requiring additional treatment; secondary outcomes included incidence of major complications and final refractive error.

Results: A total of 101 eyes were treated with bevacizumab, and 52 with ranibizumab. The bevacizumab and ranibizumab groups were characterized by mean birthweights of 941.8 ± 296.1 and 1,257.7 ± 514.5 g, gestational ages at birth of 26.9 ± 1.9 and 28.1 ± 3.2 weeks, and postmenstrual ages at treatment of 40.4 ± 2.4 and 39.2 ± 2.3 weeks, respectively. The two groups differed significantly in birthweights and gestational ages at birth, but not in postmenstrual ages at treatment. The mean follow-up duration was 30.9 ± 18.4 months for the bevacizumab group, and 13.9 ± 12.5 months for ranibizumab. More cases were classified as zone 1 ROP in the ranibizumab group (44.2% vs. 11.9%, p < 0.001). Major surgical interventions included scleral encircling and vitrectomy (one and two eyes, respectively, both in the bevacizumab group). Retinal detachment was noted in one eye treated with bevacizumab. There was no significant difference in the most recent spherical equivalence for the two groups (+0.10 ± 3.66 and +0.22 ± 3.00 diopters for bevacizumab and ranibizumab, respectively). Univariable analysis revealed that only ROP stage influenced the occurrence of major complications (odds ratio, 9.046; p = 0.012).

Conclusions: Intravitreal anti-VEGF treatment of ROP with both bevacizumab and ranibizumab achieved stable retinal vascularization with a low rate of complications and recurrence. Ranibizumab achieved similar anatomical outcomes as bevacizumab, without additional risk for major complications.

Keywords: Bevacizumab; Intravitreal injections; Ranibizumab; Retinopathy of prematurity.

Publication types

  • Comparative Study

MeSH terms

  • Angiogenesis Inhibitors / adverse effects
  • Angiogenesis Inhibitors / therapeutic use*
  • Bevacizumab / adverse effects
  • Bevacizumab / therapeutic use*
  • Female
  • Gestational Age
  • Humans
  • Infant, Extremely Low Birth Weight
  • Infant, Newborn
  • Infant, Very Low Birth Weight
  • Intravitreal Injections
  • Male
  • Ranibizumab / adverse effects
  • Ranibizumab / therapeutic use*
  • Retinopathy of Prematurity / classification
  • Retinopathy of Prematurity / diagnosis
  • Retinopathy of Prematurity / drug therapy*
  • Retinopathy of Prematurity / physiopathology
  • Retrospective Studies
  • Treatment Outcome
  • Vascular Endothelial Growth Factor A / antagonists & inhibitors

Substances

  • Angiogenesis Inhibitors
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A
  • Bevacizumab
  • Ranibizumab